Home / 789,538.61-1,089,563.75-426,962.45

Finding the Fourth Proportional to 789,538.61, 1,089,563.75 and 426,962.45

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Solution

The fourth proportional to 789,538.61, 1,089,563.75 and 426,962.45 is: 589,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,538.61 : 1,089,563.75 = 426,962.45 : x
  2. Step 2: Convert to fraction form
    789,538.61/1,089,563.75 = 426,962.45/x
  3. Step 3: Cross multiply
    789,538.61x = 1,089,563.75 × 426,962.45
  4. Step 4: Simplify right side
    789,538.61x = 465,202,808,131.19
  5. Step 5: Solve for x
    x = 465,202,808,131.19/789,538.61
  6. Step 6: Final answer
    x = 589,208.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.